Results 31 to 40 of about 1,155 (215)

Whistler propagation in the plasmapause [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
Variations in plasma density and magnetic field have a strong effect on the propagation of very low frequency waves in the whistler mode. Numerous studies have established that field‐aligned density irregularities (sometimes called ducts) symmetrical relative their axis can effectively guide whistlers along the ambient magnetic field. In this paper, we
J.R. Woodroffe, A.V. Streltsov
openaire   +1 more source

Study of nonthermal continuum patches : wave propagation and plasmapause study [PDF]

open access: yes, 2011
Nonthermal continuum (NTC) radiation is believed to be emitted at the plasmapause and near the magnetic equator. We present a particular type of NTC radiation, referred to as NTC patch, which appears over a wide frequency range and within a relatively ...
P. M. E. Décréau   +18 more
core   +1 more source

Statistics and Empirical Models of the Plasmasphere Boundaries From the Van Allen Probes for Radiation Belt Physics

open access: yesGeophysical Research Letters, 2022
We deduce the electron plasma density from the NASA Van Allen Probes Electric Field and Waves and Electric and Magnetic Field Instrument Suite and Integrated Science measurements and extract the plasmasphere boundaries throughout 2012–2019.
J.‐F. Ripoll   +7 more
doaj   +1 more source

Evaluating the performance of empirical models of total electron density and whistler-mode wave amplitude in the Earth’s inner magnetosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Empirical models have been previously developed using the large dataset of satellite observations to obtain the global distributions of total electron density and whistler-mode wave power, which are important in modeling radiation belt dynamics.
Qianli Ma   +7 more
doaj   +1 more source

Alfvén waves in the magnetosphere generated by shock wave/plasmapause interaction

open access: yesSolar-Terrestrial Physics, 2019
We study Alfvén waves generated in the magnetosphere during the passage of an interplanetary shock wave. After shock wave passage, the oscillations with typical Alfvén wave dispersion have been detected in spacecraft observations inside the magnetosphere.
Leonovich A.S.   +3 more
doaj   +1 more source

Comparisons between EUV/IMAGE observations and numerical simulations of the plasmapause formation [PDF]

open access: yesAnnales Geophysicae, 2005
Simulations of plasmapause formation described in Pierrard and Lemaire (2004) predict the shape and equatorial distance of the plasmapause as a function of the geomagnetic activity index Kp.
V. Pierrard, J. Cabrera
doaj   +1 more source

The relationship between plasmapause, solar wind and geomagnetic activity between 2007 and 2011 [PDF]

open access: yesAnnales Geophysicae, 2015
Taking advantage of the Cluster satellite mission and especially the observations made by the instrument WHISPER to deduce the electron number density along the orbit of the satellites, we studied the relationships between the plasmapause positions ...
G. Verbanac   +6 more
doaj   +1 more source

Empirical plasmapause models from magnetic indices [PDF]

open access: yes, 2003
We use a database of CRRES in situ observations of plasmapause crossings to build empirical models of the plasmapause location as a function of geomagnetic indices.
O'Brien, T.P.   +3 more
core   +1 more source

New plasmapause model derived from CHAMP field-aligned current signatures [PDF]

open access: yesAnnales Geophysicae, 2013
We introduce a new model for the plasmapause location in the equatorial plane. The determination of the L-shell bounding the plasmasphere is based on magnetic field observations made by the CHAMP satellite in the topside ionosphere.
B. Heilig, B. Heilig, H. Lühr
doaj   +1 more source

Plasmapause, Convection, and Reconnection [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2019
Abstract Being one of the first generation of space scientists who entered this field right after the space became accessible to in situ observations, I had good luck of addressing some of the basic questions in this field from the early years of my carrier.
openaire   +1 more source

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